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參數資料
型號: MC68HC11A8BCFU2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: HCMOS Single-Chip Microcontroller
中文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP64
封裝: QFP-64
文件頁數: 52/158頁
文件大小: 776K
代理商: MC68HC11A8BCFU2
MOTOROLA
5-8
SERIAL COMMUNICATIONS INTERFACE
MC68HC11A8
TECHNICAL DATA
5
5.8.2 Serial Communications Control Register 1 (SCCR1)
The serial communications control register 1 (SCCR1) provides the control bits which:
(1) determine the word length, and (2) select the method used for the wake-up feature.
R8 — Receive Data Bit 8
If the M bit is set, this bit provides a storage location for the ninth bit in the receive data
character.
T8 —Transmit Data Bit 8
If the M bit is set, this bit provides a storage location for the ninth bit in the transmit
data character. It is not necessary to write to this bit for every character transmitted,
only when the sense is to be different than that for the previous character.
Bit 5 — Not Implemented
This bit always reads zero.
M — SCI Character Length
0 = 1 start bit, 8 data bits, 1 stop bit
1 = 1 start bit, 9 data bits, 1 stop bit
WAKE — Wake Up Method Select
0 = Idle Line
1 = Address Mark
Bits 2-0 — Not Implemented
These bits always read zero.
5.8.3 Serial Communications Control Register 2 (SCCR2)
The serial communications control register 2 (SCCR2) provides the control bits which
enable/disable individual SCI functions.
TIE — Transmit Interrupt Enable
0 = TDRE interrupts disabled
1 = SCI interrupt if TDRE = 1
7
R8
U
6
5
0
0
4
M
0
3
2
0
0
1
0
0
0
0
0
$
1
02C
RESET
T8
U
WAKE
0
SCCR1
7
TIE
0
6
5
4
3
2
1
0
$
1
02D
RESET
TCIE
0
RIE
0
ILIE
0
TE
0
RE
0
RWU
0
SBK
0
SCCR2
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MC68HC11A8BVP2 HCMOS Single-Chip Microcontroller
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相關代理商/技術參數
參數描述
MC68HC11A8BCP2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HCMOS Single-Chip Microcontroller
MC68HC11A8BMP2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HCMOS Single-Chip Microcontroller
MC68HC11A8BVP2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HCMOS Single-Chip Microcontroller
MC68HC11A8FN 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:8-Bit Microcontrollers
MC68HC11A8FN1 制造商:Motorola Inc 功能描述:
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